ISSN: 0973-7510

E-ISSN: 2581-690X

Rakesh Kumar1 , Neerja Agrawal1, Rohit Rana2, Sonam Singh Chandel3 and Ashish Dwivedi4
1Department of Entomology, CSA University of Agriculture and Technology, Kanpur, (U.P.) India.
2Department of Entomology, SVP University of Agriculture and Technology, Meerut, (U.P.), India.
3Department of Plant Pathology, SVP University of Agriculture and Technology, Meerut, (U.P.), India.
4Department of Agronomy, SVP University of Agriculture and Technology, Meerut, (U.P.), India.
J. Pure Appl. Microbiol., 2016, 10 (1): 617-623
© The Author(s). 2016
Received: 10/11/2015 | Accepted: 06/01/2016 | Published: 31/03/2016
Abstract

Insecticides hamper the effectiveness of Trichogramma chilonis Ishii not only through the direct adult mortality but also reduces the parasitisation capability and per cent emergence from the parasitised host eggs which have been exposed to insecticides in field. In the present investigation, the treatments comprised biopesticides, viz. Bacillus thuringiensis var kurstaki 5% WP @ 0.5% and 0.1%, M. anisopliae (2×109 spores/g) @ 0.5%, Beauveria bassiana (2×109 spores/g) @0.5%, HaNPV (1 X 109PIB/ml) @ 0.2% synthetic insecticide cartap hydrochloride 50% SP @ 0.1% and aqueous leaf extract of  neem and Parthenium (3% and 5%) were investigated. Results revealed that the very less parasitisation (0.00 to 8.67%) and adult emergence (0.0% to 28.33%) were recorded from cartap hydrochloride 50% SP @ 0.1% + HaNPV (0.2%), followed by the combination of aqueous neem leaf extract (5%) + Btk (0.1%) causes lowest parasitisation (10.00% to 27.33%), whereas lowest adult emergence (25.33% to 48%) were recorded from Parthenium leaf extract (3%) + Btk (0.1%) among botanicals and microbial insecticides. On the contrary maximum parasitisation (52% to 71.67%) and emergence (34.33% to 83%) recorded from HaNPV (1 X 109PIB/ml) @ 0.2%, followed by combination of HaNPV (1 X 109PIB/ml) @ 0.2% + Btk (0.1%) resulting 50% to 60% parasitisation and 35% to 75.67% emergence which show very less toxicity to T. chilonis Ishii.

Keywords

Trichogramma chilonis Ishii, Bacillus thuringiensis var kurstaki, Beauveria bassiana, M. anisopliae, Microbial insecticides, Botanical insecticides.

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© The Author(s) 2016. Open Access. This article is distributed under the terms of the Creative Commons Attribution 4.0 International License which permits unrestricted use, sharing, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.